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  #1  
Old 05-23-2007, 02:03 AM
stilltippin
 
Join Date: May 2006
Location: TEXAS
Posts: 19
'97 C280 leaks antifreeze WORST

I have a '97 C280 inline 6 MB, I have had to put antifreeze in for the past few weeks now I found the leak. Its gotten worst so I stop driving it for the time being, Standing in front of the hood on the right hand side of the motor, its leaking from under the???????? Not for sure if its the water pump or thremosacts housing. Can any one help me with this problem. Kinda want a little light on the issue before going in.

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  #2  
Old 05-23-2007, 05:57 PM
stilltippin
 
Join Date: May 2006
Location: TEXAS
Posts: 19
Any ideas or help????
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  #3  
Old 05-23-2007, 07:26 PM
Registered User
 
Join Date: Feb 2002
Location: east coast
Posts: 1,255
describe the part that is leaking with more description,
is the radiator top hose going into it?

if you use the search there is a russian language site that has all the diagrams of all the modern MB road cars.
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  #4  
Old 05-24-2007, 01:22 AM
stilltippin
 
Join Date: May 2006
Location: TEXAS
Posts: 19
Its on the front right side on the motor near the top, a hose goes to the reserve tank, and a big hose goes to the radiator. Its looks to be a thermostat housing????
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  #5  
Old 05-24-2007, 12:10 PM
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Join Date: Feb 2002
Location: east coast
Posts: 1,255
has to be the thermo housing and when you get a new MB oem thermostat it comes with an O-ring for the housing.

also hoses and clamps need to be inspected that go into it, they may be needing a change out. the hoses last a long time on these cars - but if you have a leak check them carefuly
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  #6  
Old 05-24-2007, 12:33 PM
stilltippin
 
Join Date: May 2006
Location: TEXAS
Posts: 19
Looked at it today its has a nice stream of antifreeze coming from under the water pump. Is this the tell tell sign for a new water pump???? How hard is it to change???? I have replaced them on gmc/chevy but never a mb, I know a mb is nothing like a gmc.
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  #7  
Old 05-24-2007, 12:36 PM
stilltippin
 
Join Date: May 2006
Location: TEXAS
Posts: 19
Also whats a good brand pump, autozone and a few more parts store have them.????
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  #8  
Old 05-24-2007, 01:58 PM
jlomon's Avatar
Registered User
 
Join Date: Aug 2002
Location: Toronto, Ontario
Posts: 310
You can order a pump right off this site. Just click on the "buy parts" button at the top of your screen. Have your VIN with you because if your '97 is anything like my '94, there were multiple water pumps available, depending on the date of manufacture.

I watched my indy do my water pump. As near as I can tell, the trickiest part is the removal of the fan from the pulley because there is very little clearance between the nut you have to remove and the radiator. If you aren't careful you could damage the radiator. He had built a special tool that amounted to a long thin piece of metal with a socket welded to it, and he used that to remove the fan nut.
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Jonathan

2011 Mazda2
2000 E320 4Matic Wagon
1994 C280 (retired)
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  #9  
Old 05-24-2007, 04:38 PM
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Join Date: Dec 2005
Location: Atlanta.
Posts: 366
Some of the water pumps have a universal fitting on the rear that have to have a brass fitting tapped into them kinda like a small freeze plug.

Some cars do not need the fitting because they have a hose that bolts on there, but others have to have the plug tapped into the hole, make sure you ask when you get the pump.

I am talking about dealership M/B pumps.
Aftermarket ones may not need the plug or have the hole in the rear.

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